Aerospace Engineering announced that on December 12, December 15, and December 16, 2025, the daily closing price increase deviation value of the company's stock reached 20% for 3 consecutive trading days, which is an abnormal fluctuation in stock trading. After self-inspection by the company and verification with the controlling shareholder and actual controller, as of the disclosure date of this announcement, there was no material information that should have been disclosed but not disclosed. The company's main business is based on aerospace pulverized coal pressurized gasification technology. It specializes in R&D, engineering design, technical services, complete equipment supply and general engineering contracting of coal gasification technology and key equipment, and does not involve commercial aerospace.

Aerospace Engineering announced that on December 12, December 15, and December 16, 2025, the daily closing price increase deviation value of the company's stock reached 20% for 3 consecutive trading days, which is an abnormal fluctuation in stock trading. After self-inspection by the company and verification with the controlling shareholder and actual controller, as of the disclosure date of this announcement, there was no material information that should have been disclosed but not disclosed. The company's main business is based on aerospace pulverized coal pressurized gasification technology. It specializes in R&D, engineering design, technical services, complete equipment supply and general engineering contracting of coal gasification technology and key equipment, and does not involve commercial aerospace.